Investment casting Essay Example

Investment casting Essay Investment casting or lost wax casting has been used by many different cultures for thousands of years.The Egyptians used investment casting to make bronze statues and the Chinese made vessels and a variety of other items by using investment casting.Therefore, it is by no means a new process.The most modern approach, which has been used since the middle of the twentieth century is called ceramic shell casting.Because this is the most modern form of investment casting, I will bee focusing on this particular process for the entirety of the paper. The two different types of patterns used in investment casting are called expendable and permanent.Expendable patters are made of wax, are joint less, and yield a casting with a higher degree of accuracy than the permanent pattern method.The permanent pattern method uses a pattern that is made of wood, steel, or some other type of solid material.Using the permanent pattern method is usually cheaper than the expendable pattern method.One disad vantage of the permanent pattern method is that the molds must be assembled in separate parts, which makes it less accurate than the expendable pattern method. Thefirst step in investment casting when using the expendable pattern method is to manufacture a die.The die is made from strong alloys such as steel and Duralumin or softer fusible alloys where accuracy is less important.Steel dies are the best for long production runs and are machined from a solid piece of steel.Many dies are produced in two or more sections enabling the pattern to be removed once it is cast.After the die is done being machined it is coated with a parting agent or lubricant which helps the pattern to be extracted.The die is used repeatedly to makewax patterns for the investment process. Wax is the most common material used in investment casting.The wax has a low ash content, is compounded from natural and synthetic waxes and resins, and usua

The Tsunami Disaster essays

The Tsunami Disaster essays The disastrous horror that came in the form of a massive tsunami has ravaged and devastated an incredibly large area and has left many people searching for family members, a new place to live, and for the answer to the question, What now? With an obscene amount of over 150,000 people already killed or missing and with that number expecting to be ballooned to a much higher figure by the time it is all said and done, this tsunami has without a doubt been the worst in recent history. The tsunami was unleashed by a 9.0 magnitude earthquake under the ocean, just off of the coast of Indonesia. This quake was one of the five largest since 1900. The aftershocks alone were shown as ranging in magnitude from almost 6 to 7.3. In comparison, the devastating San Francisco of the early nineties had an initial quake of 7.8, with aftershocks ranging from 3 to 4. The initial waves, traveling of upwards of 500 to 600 miles an hour towards the shower, initially are only a few feet in height so they are not noticeable in the open ocean. As the approach shallower water though, they slow down and reach much greater heights. With waves upwards of 20 feet crashing onto the shore, thousands of people were swept out to see with the initial waves. Studies show that the west coast is by no means safe from a tsunami of its own. The last great earthquake to strike the west was a 9.0 back in 1700 and it created tsunamis along the west coast and Japan. Scientists tell us that the fault has been locked ever since and is prime for another large disruption. Other faults deep beneath the Pacific could also cause tsunamis either by raising or lowering the ocean floor by shifting of the tectonic plates. These articles are a definite eye opener for anyone who is not so well informed on how tsunamis occur and how disastrous they can be. The authors of these particular articles not only show us the tragedy that occurred among the pe...

Black Studies The Black Experience In Southern California Essay

Black Studies The Black Experience In Southern California - Essay Example His book traces the development of society in Los Angeles following the war. The city was vibrant with economic activity and cultural diversity. Avila narrates the city’s cultural history from the end of the war till the seventies when immigrants from the rest of America and indeed the world flooded into LA to share in the potential economic boom of the time. This immigrant population brought with them their cultural baggage of various ethnic and racial identities. They included whites who formed the dominant part of the mix and it was they who defined the whiteness of the city. Better educated with a history of previous employment, the white population were able to secure well-paid jobs with benefits and incentives. They soon formed the dominant race and established its ‘whiteness’ interspersed with a mix of various ethnic and racial cultures. Avila explores the subsequent interactions between popular culture, suburbanization of whites and the exodus of cultures from middle and Eastern America to the West. He explains the social and spatial consequences of this cultural shift alongside other notable events that occurred during the period. He attributes some key events such as the Brooklyn Dodgers move to Los Angeles, the setting up of Disneyland and the building of the Californian freeways, to the drastic reorganization of urban spatial zones and the redistribution of ethnic and racial minorities in the city. Many of the minority groups, amid political turmoil and much opposition were forced to shift to other areas to make way for construction of the new stadium and the freeways. Marginal neighbourhoods faced the threat of destruction and those that were bypassed ran into neglect. Although residents attempted to halt the construction of the Californian freeways and the stadium they efforts were ultimately futile. Political policies during the period attempted to zero in on the white hot spots interspersed in non-white neighbourhoods, ignoring the significance of the racial population. Over several decades as outer towns and towns within the immediate vicinity of LA, became encapsulated with the larger city, the city leaders tended to segregate the city, demarcate it according to the racial mix existing in those areas. Locales that were more developed or affluent gained more attention and investment than the areas that seemed to show less potential. Due to the political neglect, the underdeveloped neighbourhoods became infested with all kinds of crime and misdemeanour. Less job opportunities and lack of focus on education in schools, poorly paid teachers, shifting of professionals to more affluent parts, all contributed to the rise in crime. The consequence of this was that the underprivileged in ethnic and racial communities, fell prey to lawlessness. The blacks resorted to criminal violence , robbery and murder as a means to maintain their livelihoods. A culture of violence spread through the city and grew rise to gangs. Involvement with drugs and other illegal activities also became a means to an end. This brought about the image of crime to be associated with blacks. Further reinforcement came about through the depiction of crime in television and film and many of the instigators of violence were shown to be black. Avila makes the point of how television and fi

Abortion Essay Example | Topics and Well Written Essays - 1000 words - 10

Abortion - Essay Example According to Rank’s Persuasion Mode, the persuaders on the two position take the schemas of intensify and downplay. (Hitchcock, David, and Bart, 15) In the January, 20, 2014 article written by Jeremy W. Peters, though the headline of the paper suggests that â€Å"Both sides of the abortion issue expressed their views at the last year’s March for Life in Washington†, the emphasis has been laid on Pro Life. The expression presented is that â€Å"there will be a demonstration of the annual anti-abortion, and should the demonstrators need a lift after the demonstration, then they may hope on the free shuttle that would be provided by the republican. From these preceding connotation my The New York Time columnist, clearly, it would be said that the writer is using intensify. Emphasis is created in how supporters of the abortion are not just getting support from significant party like Republican, but also with the benefits presented. In the subsequent paragraph, the writer makes statements that create intensity in the weaknesses of the position presented by Jill Cowan of Los Angeles Times. According to the commentary by Jill Cowan, the column is presented with the Headline: â€Å"State allows Hoag Hospital to refuse elective abortion†. Jill notes that Hoag Hospital had successfully managed to impose the ban on abortion considering that they had made a partnership with the Catholic healthcare providers, and considering that they must also appreciate the demands of the State, they will have no option but to refer their clients to other places where they can get abortion services. In relation to what was presented by The New York Times, it sounds clear that the Los Angeles Times is presenting some issue which evidently does not appreciate the health of the mother. New York Time has tried to intensify the weakness of the position taken by Los Angeles Times in this case. According to the theory of Rank’ s Model, the

Statement of purpose Personal Example | Topics and Well Written Essays - 500 words - 12

Of purpose - Personal Statement Example I believe a meaningful life should be all about aiming high and working hard to reach that high. Purdue University is the best university that help one realize the full potential in health and human sciences. One of the unique qualities of Purdue University is that it has accreditation to offer programs in health and human sciences and guarantees a nationally recognized degree to any person undertaking a program in this university. Secondly, the university is committed to excellence though creating, disseminating and applying knowledge in the areas of the programs offered. Thirdly, the university opens its doors to the locals, national and international citizens through providing healthy and safe working and learning conditions to the students, teachers, workers and the community in general. The university has several interdisciplinary programs, which include radiology, occupational health science, environmental health science, environmental and occupational toxicology, and medical laboratory sciences. Purdue University has academic research and training facilities that will assist in pursuing my degree. Such facilities include state of the art programs that help in preparing students to become great leaders. In addition, there are research and development programs that aids in improving the understanding of the particular area of study. The faculty that interests me in Purdue University is the faculty of occupational and environmental toxicology. The program involves the study of the adverse effects of toxic substances on people, animals, and the ecosystem. The research projects in this faculty include the research on the environmental causes of neurodegenerative diseases such as Alzheimer’s disease and tremors, research on cellular toxicities caused by radiation and research on fetal origin of adult diseases due to early exposure to chemicals such as pesticides. In

Macro environmental factors that affect firms

Macro environmental factors that affect firms These factors are not within the control of management of business but still affects the business up to large extends. These factors are almost uncontrollable. The organization has to fit into this environment to survive in this competitive scenario. These factors of macro environment also affects the factors within the organization i.e. factors of micro environment. There are many factors in the macro-environment that will affect the decisions of the managers of any organization in this whole world. Tax changes, new laws, trade barriers, demographic change and government policy, political changes are all examples of macro change. To analyze these factors managers can categories them using the PESTEL model. Political factors: This refers to government policy, For example: the degree of intervention in the economy. What goods and services a government wants to provide? Up To what extent does it believe in subsidizing firms? What are its major priorities in terms of business support? Political decisions can impact on many vital areas of business such as the education of the workforce, the health of the nation and the quality of the infrastructure of the economy such as the road and rail system. Economic factors: This includes interest rates, taxation changes, economic growth, inflation and exchange rates. For example: Higher interest rate may deter the investment because it costs more to borrow. Inflation may provoke the higher wage demands from employees and raise costs. Higher national income growth may boost the demand for a firms products. Social factors: Changes in social trends can impact on the demand for a firms products and the availability and willingness of employees to work. For example: In the UK, the population has been ageing. This has increased the costs for firms who are committed to pension payments for their employees because their staffs are living longer. It also means some firms like ASDA have started to recruit older employees to tap into this growing labor pool. The ageing population also has impact on demand. For example: Demand for sheltered accommodation and medicines have increased whereas demand for toys is falling. Technological factors: New technology creates new products and new processes. MP3 players, computer games, online gambling, i-pods and high definition TVs are all new markets created by technological advances. Online shopping, bar coding and computer aided design are all improvements to the way the businessmen do business as a result of better technology. Technology can reduce costs; improve quality and leads to innovation. These developments can benefit consumers as well as the organizations which providing the products. Environmental factors: Environmental factor includes the weather and climate change. Changes in temperature can impact on many industries which include farming, tourism and insurance. With major climate changes occurring due to global warming and with greater environmental awareness these external factors are becoming a significant issue for firms to consider. The growing desire to protect the environment is having an impact on many industries like the travel and transportation industries (For example: more taxes being placed on air travel and the success of hybrid cars.) and the general move towards more environmental friendly products and processes is affecting demand patterns and creating business opportunities. Legal factors: These are related to the legal environment in which firm operates. In recent years in the UK there have been many beneficial legal changes that have affected firms behavior. The introduction of age discrimination and disability discrimination legislation, an increase in the minimum wage and greater requirements for firms to recycle are examples of the recent laws that affect an organisations actions. Legal changes can affect a firms costs and demand. IMPORTANCE OF BUSINESS ENVIRONMENT Firm to identify opportunities and getting the first mover advantage: Early identification of opportunities helps an enterprise to be the first to catch them instead of losing them to competitors. For example: Maruti Udyog became the leader in the small car market since it was the first to recognize the need for small cars in India. Firm to identify threats and early warning signals: If an Indian firm finds that a foreign multinational company is entering the Indian market it should gives a warning signal and Indian firms can meet the threat by adopting, by improving the quality of the product, reducing cost of the production, engaging in aggressive advertising, and so on. Coping with rapid changes: All sizes and all types of industries are facing increasingly dynamic environment. In order to effectively cope with these significant changes, managers must understand and examine the environment and develop suitable courses of action. Improving performance: The enterprises that continuously monitor their environment and adopt suitable business practices are the ones which not only improve their present performance but also continue to succeed in the market for a longer period of time. THE ORGANISATIONAL EXTERNAL BUSINESS STRATEGY By using the PESTEL framework a manager can analyze the many different factors in a firms macro environment. However, it is important not to just list PESTEL factors since this does not in it tell managers very much. What managers need to do is to think about which factors are most likely to change and which will have the greatest impact on them i.e. each firm must identify the key factors in their own environment. Managers must decide on the relative importance of various factors and one way of doing this is to rank and score the likelihood of a change occurring and also rate the impact if it did The higher the likelihood of a change occurring and the greater the impact of any change the more beneficial this factor will be to the firms planning. External Strategies of different organization Economic factors :- Vodafone: The growth of Asian countries like India and china, have had massive effects on Vodafone. Vodafone can relocate production there to benefit from lower costs; these emerging markets are also providing enormous markets for them to aim their product at. With a population of over 1 billion, for example, the Chinese market is not one that anyone would want to ignore, at the same time Chinese producers should not be ignored either. Social factors :- McDonaldà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s: Important strategic decisions are a key factor to Mac Donaldà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s success with consideration for both internal and external factors. When considering the foreign market, companies need to consider there are risks. There must be local marketing to appeal to the local consumers and also to build relationships and trust (Bateman Scott, 2004). Therefore, the strategic planning for marketing has to be effective enough. McDonaldà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s caters its menu in other countries to the cultures of the regions. For example, in India, the non-vegetarian menu includes chicken and fish items only. Beef is not on the menu in India because are considered sacred. Political-legal factors:- American auto makers, the electric car and California: Electric cars For whatever reasons, several of the auto manufacturers in the USA began developing which they leased to satisfied customers. Then, California decided that it would be a good idea to mandate to American auto makers that if they expected to sell their cars in California they would have to invent some new technology reducing carbon dioxide. Presumably, California expected to see an increase of the electric cars being sold by auto makers. What happened is quite the opposite and the auto makers took a hard look at their electric car program, uncertain how to market a clean vehicle without admitting the piston engine vehicles are dirty, realizing that much of the profit from a piston engine vehicle comes with the replacement of the parts and not so with electric cars and finally, realizing that a State, not even the State of California can make them build technology they dont have, nor can any state even make them keep b uilding the technology they do have, and so, the auto makers killed their own electric car program and this was the impact of a political-legal environment. Technological factors:- NOKIA: The starting models of Nokia had some technical problem with battery backup. People who were using those handsets often complain which had spoil the reputation of the Nokia completely. The sales and market price of Nokia fell down drastically. Then management took serious consideration to these problems, and modifies all the handset with latest technology. Nokia had been successful to regain the trust of its consumers and as a result it enjoys monopoly in market. Environmental factors:- Tesco: In 2003, there has been increased pressure on various companies and managers to acknowledge their responsibility to society, and act in a way which benefits society overall. The main societal issue threatening food retailers has been environmental issues, a key area for companies to act in a socially responsible way. Hence by recognizing this trend within the broad ethical stance. Tescos corporate social responsibility is concerned with the ways in which the organization exceeds the minimum obligations to stakeholders specified through regulation and corporate governance. Graiser and Scott (2004) states that in 2003 the government has intended to launch a new strategy for sustainable consumption and production to cut waste reduce consumption of resources and minimize environmental damage. The latest legislation has created a new tax on advertising highly processed and fatty foods. The so-called à ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒâ€¹Ã…“fat tax directly affected the Tesco product ranges that have subsequently been adapted and affecting relationships with both suppliers and customers.

The Yellow Wallpaper :: Charlotte Gilman

In a female oppressive story about a woman driven from postpartum depression to insanity, Charlotte Gilman uses great elements of literature in her short story, The Yellow Wallpaper. Her use of feminism and realism demonstrates how woman's thoughts and opinions were considered in the early 1900?s. The theme of this story is feminism. Having gone through postpartum depression herself, Gilman?s story was strongly personal. During the time period that she wrote it, woman?s rights were limited. The character in this story felt she knew ways to recover herself from her depression, or ?baby blues?. Baby blues also known as postpartum depression is a form of severe depression after pregnancy delivery that requires treatment. Women may feel sadness, despair, anxiety, or irritability. The woman from the story wanted to get well and wanted to work. However, as a woman she was forbid by her husband to do this. Instead she was isolated from society, from being able to work, do the things she loved, or take care of her baby. The Yellow Wallpaper was written as a realism story. It showed how woman felt they had the same opportunities as men in their personal choices. In this story, the woman expressed her worries to her husband who through good intentions, required that his wife stay in bed 24/7, and not do any of the things she would normally do. In effect his wife became worse until she reached the limit. The behavior of the husband at this time was completely normal. Men were the higher power over women and women, like the one in this story, felt that they couldn?t stand count for themselves.

Debut Albums and Unselfish Good Deed

Happiness in her Eyes Life is not always all about receiving; sometimes, we have to think of others, and give back. This summer for instance, I performed a very unselfish good deed that I will never forget. When someone hears â€Å"good deed† one might automatically think that it is giving clothes to the naked, feeding the hunger, or donating blood to Red Cross. My unselfish good deed, however, was far from all those things. Over the two months of summer, I had the pleasure to accompany and assist my pregnant mom.Growing up, my mom has never told me to do the laundry, clean my room, or cook. I have never picked up a broom, or dusted one shelf. But since my mom is old and with child, I thought to myself that I should not second guess whether or not I should give her a helping hand. I did chores around the house like no other. I even remember turning down a couple of friends to go to the movies, just so I can stay home and make sure that my mom is secure and not worrying about a nything but herself and my soon to come baby sister.Without my mom saying a word, I could tell that she was very proud of me. I saw happiness in her eyes when she saw me doing the right thing without her having to peep a peep. And personally, I was more than delighted for what I have done over summer. When my mom is happy, I am happy. One day, I want to do way more for my mom. I want to make her proud, I want to make her a Queen. She deserves the best, and I will not stop until she gets the best!

Husky Injection Molding Systems

Question: What is Husky's strategy? Why has the company been so successful in the period prior to the recent problems? Husky follows a differentiation strategy by trying to offer a higher perceived value than its competitors in order to convince customers to pay a premium price for the company’s products – across its product line, Husky charges a 10% to 20% premium. Husky’s success, prior to the recent problems, can be explained by the following value drivers: Husky’s product featuresThe company is known in the industry for its high quality products. Husky’s systems are speedier than the ones of the competition (for PET products, Husky’s cycle time is 10% to 15% shorter) and they are believed to be more rugged. Furthermore, Husky’s systems are able to produce thinner walls than competitors’ machines, and their resin utilization and durability are higher. Unlike rivals, the company offers a fully integrated system of thinwall mol d, machine, and product-handling equipment. Husky’s customer serviceThe company established technical centers in key locations to provide technical support to its customers. Husky’s internal service force is known to be the strongest in the industry, and in addition, its sales force does an extraordinary job. Husky’s complements In addition to Husky’s systems, the company offers value-added services to provide greater perceived value for its customers: Husky’s experts plan injection molding facilities for customers, train customers, integrate production systems, and produce turnkey factories.In addition to these internal developments, Husky was also able to take advantage of the fact that soft drink makers shifted rapidly to plastic bottles: The company could establish itself in the PET preform market by bringing a quick series of product innovations on the market; by 1995, 60% of the world’s preforms were manufactured on Husky systems. All factors mentioned above contributed to Husky’s good brand equity that, in turn, allows the company to charge a premium price for its products, thus creating a competitive advantage.

The Color essays

The Color essays The Color Purple, by Alice Walker, is a very intense book to read. By intense, I mean it is a book touching very difficult and hard aspects of life of a poor, black oppressed woman in the early twentieth century. Walker does social criticism in her novel, mostly criticizing the way black women were treated in the early twentieth century. Walker uses the life experiences of Celie to illustrate her social criticism. The Color Purple is not written in the style of most novels. The author does not tell us everything about the characters, the setting, and why the characters behave the way they do. The novel is written in a series of letters, not dated. There are large gaps between some letters, but this is not revealed by the author; we have to figure it out ourselves. The letters are written in what Walker calls black folk language, which also reduces the easiness of the reading. When the novel opens, Celie is a young black girl living in Georgia in the early years of the twentieth century. She in an uneducated girl, and writes her letters in common language. Celie is entering her adolescence believing she was raped by her father and that he killed both of their children. She writes to God, because she has no one else to write to. She feels that what happened to her is so terrible that she can only talk about it to someone she feels loves her. She knows her sister Nettie loves her, but she is too young to understand. Celie believe only to God may she talk honestly and openly about her suffering. Celie is not, however, at this point, complaining to God, she is simply Celie was born into a poor family; her mother was sick most of the time, mentally and physically; there were too many children in the family; and Celie was abused by the man she believed was her father. Celie feels used and abused, but does not understand why. So many bad things have hap ...

Sociology Essay Example | Topics and Well Written Essays - 500 words - 18

Sociology - Essay Example ucture to its formation and progress as a function of social units, customs, interactions, and general stimuli within the society built around to affect that behavior (Farlex). Besides proposition of acknowledged theories which most hard sciences carry out through an inductive process, social science has made it a point to be founded on a deductive methodology, taking the matter of fact that by real experience, social relation would not set itself alone in an individual, as distinctly impacting oneself apart from external communication or influence by others. It has then become a requirement in its meaning that a social relationship should validate its existence in a situation where there flows substantial interaction between two individuals at least. Social institution, on the other hand, establishes and enhances such interaction by getting individuals in a framework that makes them meet, know each other increasingly, and eventually share a common ground from which to form a culture. As normally encountered on a longer term, this culture or way of life becomes one’s source of paradigm and core values to be used in response to how its continuous reality shapes the human being who is self-aware of the necessity to either maintain or modify his social attributes whenever it suits him. The mutual aims and interests of humans who socialize with each other on a regular basis among different institutions under diverse culture, further fit into a sum known as society. It is perhaps in deeply ascertaining what the society ought to be made of in view of idealism that had made the typical concept of classifying individuals into ranks based on the results of their talents effected through constant socialization which later establishes for them an economy and status they can be identified with. Economic discussions are however rather more specialized to go with social factors and must be treated in separate detail beside the points brought up in sociological studies. In

Human Resource Management Term Paper Example | Topics and Well Written Essays - 3000 words

Human Resource Management - Term Paper Example The supermarket has been able to divide all its stores into five major segments depending on the location and demands of the customers. These segments are Superstores, metros, express hyper, additional home plus and anything else can be found under one roof. The express hyper shops are small in size and are located in the neighborhoods to offer food stuffs and they normally have high margins due to the small sizes of the shops while the metros are usually located at the city center. At the international level, these stores are found in the United Kingdom, Ireland, South Korea, Poland, Kenya, France, China and Hungary. Their major competitors include You deserve the best, Between us, The place to be and Amongst us supermarkets (Armstrong, 2003). The supermarket has a corporate strategy which helps it appeal to all segments of the market that is the up market, middle age and the low market range. The strategy for You n Us supermarket has been its ability to include the finest brands, middle and low priced products so as to meet all the demands and expectations of the customers. Since 2001, the supermarket has been able to market itself using the phrase â€Å"Home for Your Value† slogan to describe its principles, mission and core values both locally and internationally. It has also been able to advertise both locally and internationally using the slogan â€Å"you need it, we have it†. Most of its advertisement is done in major billboards along major highways, electronic media and the print media. In the television advertisements, they have been able to engage the services of major actors and actresses such as Look Brooke, James Upright and Young Heart (Armstrong, 2003). The supermarket is committed to corporate social responsibility by offering some of its pre-tax profits to charitable organizations, schools and community based activities. It has started a computer school for the disadvantaged in the